Window construction



F. B. ROSE WINDOW CONSTRUCTION Filed Jan. 4, 1936 j?, lo .2.

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. l l il l lil INVENTOR ATTORNEY June 2l, 1938. l F, B ROSE 2,121,714

WINDOW CONSTEUCT ION Filed Jan. 4, 195s 2 sheets-sheet 2.

gig' 7' f2? Z il e t\\\\\\\\\ f\f r/5 /7` 57 Y twg: -5 v if i|||| 7 z5! en/en' s. \\\\\\\\\l` Patented June 21, 1938 UNITED STATES PATENT OFFICE 6 Claims.

This invention relates to windows, and particularly to those of the sliding sash type used in building construction. In present window constructions, and particularly those installed in buildings that are properly conditioned as to humidity in cold weather, moisture collects on the window panes in the form of frost obscuring the view therethrough. Also when the weather moderates the frost melts and runs over the window stool, and draperies causing much damage.

I am aware that various schemes have been devised to overcome these diiliculties, such as storm sashes that are applied to the window frames in place of the window screens, or auxiliary sashes l5 that are xed to the present conventional sashes to provide dead air spaces between the panes of glass. These schemes, however, have not proved satisfactory for the reason that the auxiliary or storm sashes cannot be made to lt closely enough and must be removed when, the window panes are to be washed and they also interfere with the application of conventional window screens.

It is, therefore, the principal object of the present invention to provide a window structure equipped with dual, double hung sash whereby an air space is provided between the dual sashes and which in no way interferes with placement of the conventional window screens or with window washing operations. v

Other important objects of the invention are to provide a construction of this character which is accommodated in a wall of conventional thickness; to provide improved means for weatherproofing the sash guides; to provide for ease of operation; and to provide, a more compact construction requiring smaller casements between the windows when they are located in groups or pairs. v f

In accomplishing these and other objects of the invention, as hereinafter pointed out, I have provided improved details of structure, the preferred form of which is illustrated in the accompanying drawings wherein: f

Fig. 1 is a perspective view of the interior side of a window constructed in accordance with the present invention.

' Fig. 2 is a vertical section through the window on the line 2-2 of Fig. 1.

Fig. 3 is an enlarged horizontal section through one side of the 'window on the line 3--3 of Fig. 1.

Fig. 4 is a fragmentary vertical section on the line 4-4 of Fig. 3, particularly illustrating the sash counterbalances.

Fig. 5 is a detail perspective view of a portion (Cl. 20-52)y of the weather-stripping for sealing the sash guides.

Fig. 6 is a detail perspective section of the parting member.

Fig. 7 is a perspective view of a portion of the weather-stripping for the meeting or check rails of the pairs of sashes.

Referring more in detail to the drawings:

I designates a window frame inset into an opening 2 formed in the side wall 3 of a building, which for the sake of illustration, is shown to be of frame construction, including vertical studs 4 which are boxed and weather-boarded on the outer sides as shown at 5 and 6, and lathed and plastered on the inner side, as indicated at I and 8 respectively.

The wall may be provided with a suitable insulating material 9 to prevent heat loss therethrough, as in conventional construction. While I have particularly illustrated my invention as applied to a frame construction it is adaptable to any of the other types of. construction.

The frame I includes side jambs I0 and I`I connected at their upper ends by a header jamb I2 and at their lower ends by a sill I3 sloping outwardly and downwardly toward the exterior wall as in conventional window frame practice. Secured to the outer edge of the side jambs and header are blind stops I4 cooperating with a parting stop I5 that is inserted in a rabbet groove I6 of the jambs to form a way I 1 for an outer set of sashes I8. 'I'he parting stop I5 also co-l operates with a window stop I9 that is attached along the inner edge of the jambs to form a way 20 for an inner set of sashes 2l. The window frame also includes an outer casing 22 secured to the blind stop and having its outer edge 23 overlapping the outer wall structure 'to secure the frame within the wall opening.

Secured along the inner bottom edge ofthe'sill is a conventional window stool 24 and secured to the inner edge of the jambs is an inner casing 25 which may be of any design, however owing to the fact that 4the jamb is of greater width than that of the conventional jamb, the inner edge of the casing 25 is rabbeted, as at 26, to accommodate that portion of the jamb projecting from the inner face of the plaster.

The ways I1 and 20 are of substantially dupli cate width and shape to slidably mount the inner and outer pairs of sashes, each sash of the pair being guided in separate grooves that are formed by supplementary parting strips 21 and 28 extending across the header jamb and longitudinally of the side jambs substantially midway of the respective ways. There is also a supplementary parting strip extending across the window sill in position to be engaged by the bottom rail of the'outer sash.

The supplementary parting strips are best illustrated in Fig. 6, and are preferably formed of a strip of spring-like metal doubled back upon itself, intermediate of its width, to form a projecting tongue or rib 23 having yieldable sides 30 and 3l terminating in lateral extending flanges 32 and 33 adapted, to lieat against the bottom of the ways I1 and 20, as best shown in Fig. 2. The parting strips are loosely supported in the guides with the flanges thereof bearing against the faces of the jambs, but are secured at one of their ends by blocks 34. For example, a block 34 is nailed within the jamb in overlapping relation with one of the side flanges of the parting strips at the upper ends of the ways, and a similar block is nailed over the lower end of the opposite ange at the bottom of the guides, as best illustrated in Fig. 2. The tongue or rib portions of the parting strips are therefore yieldable with movement of the respective sashes and are of spring-like nature to frictionally bear thereagainst in the manner of weather-strip.

Cooperating with the rib in effecting a seal about the sashes are weather-strips 35. also preferably formed of spring-like metal, having flange portions 36 engaging with the inner faces of the jambs and laterally extending web portions 31 engaging against the inner ways of the blind stop, the parting strip and the window stop respectively, as the case may be.

The web 31 terminates in a laterally extending bead 38 overlapping the blind, window stops and parting strips, as the case may be. The edge of the strip after forming the bead is then bent reversely, as at 39, and terminates in a wing portion 40 yieldingly engaged with the sides of the sashes to cooperate with the yieldable rib of the supple-A mentary strips in eecting a weatherproof seal about the sashes. The strips 35 are secured in position by the same blocks as the supplementary parting strips, the flanges of the weather-strips being overlaid by the blocks.

The pairs of sashes are of conventional. construction but are of suitable thickness to slide freely within the guides and include upper and lower check rails 4I and 4I connected by vertical stiles 42 and 43 which are rabbeted to accommodate panes of glass 44 that are glazed therein as in conventional practice. The bottom rails of the lower sashes are provided with flush lifts 45 and 46 whereby the sashes may be manipulated within the guides.

In order to provide a seal between the upper and lower sashes the check rails carry a sealing strip of the type illustrated in Fig. '1. The seal strip is also formed of resilient material, and includes a body portion 41 engaging against the check rails of the lower sashes and which has a bead 48 on its upper edge for overlying the top of the rail. 'I'he bottom edge terminates in a reverse bend ilange 49 to crimp a yieldable weatherstrip 50 for engaging against the inner face of the check rail for the upper sashes. The sashes may be provided with suitable window locks 5I and 52 which are of conventional construction except for the keepers 53. The keepers 53 comprise fiat plates secured to the check rail of the upper sashes and have upper ends terminating in hooks 54 for engagement with a conventional rotatable latch 55 of the lock on the lower sashes. Y

In windows having small sashes the metal guides provide sufficient friction to hold the sashes in adjusted position, however. on the larger size sashes it is desirable to provide spring balances 33 to retain the sashes in adjusted position and assist in their movement. 'Ihe spring balances include housings B1 that may be inset into the side or header jambs, as shown in Fig. 4 and rotatably mounted therein are spring tensioned drums 58 carrying tapes 53 that extend through slotted kopenings in the housing vand are attached to the bottom edges of the sashes by clamps Il, the tapes extending downwardly between the edges of the ways and faces of the weatherstripplng. as shown.

In assembling a window frame constructed as described, the lambs and outer casing may be delivered to the job in assembled condition with the blind and parting stops I4 and I! in position. The frame is inserted and secured in position by nailing through the outer casing. The inner caslngs and trim are applied to the lambs as in conventional practice. Weather-strip, as shown lin Fig. 5, is then applied against theA blind stop so that the anges 36 thereof lie within the outer way I1 and extend longitudinally of the side jambs. 'I'he upper sash of the outer pair is then applied in the window frame in juxtaposition with the weather-strips. A pair of parting strips, as shown in Fig. 6, is then applied within the way I1 so that the rib portion thereof lies against the inner face of the sides of the sash. A similar strip is then applied across the header I2, after which the lower sash of the outer pair is inserted in the frame and moved against the ribs of the supplementary parting strips. The main parting strip I5 is then reinserted in the frame, and weather-strips of the type shown in Flg. 6 are applied to the inner corner thereof so that the wings 40 thereof engage against the inner sides of the lower sash. Blocks 34 are then applied at the upper and lower ends of the way in lapping arrangement with the flanges of the strips and nailed to the window jamb to support the strips thereagainst. 'I'he strips are thus supported only at the ends so that the intermediate portions thereof are free to yield with movement of the sash as the sash is raised and lowered in conventional practice.

A pair of weather-strips is then applied to the opposite sides of the parting stop, whereupon the upper sash of the inner pair is inserted in the frame for moving thereagainst. The auxiliary parting strip is then inserted in the inner way against the ways of the sash, after which the lower sash is applied and then the inner weatherstrip, the inner auxiliary parting strip and weather-strip being secured by blocks 34 in the same manner as described in connection with the outer strips. The window stops I9 may then be applied. in their proper position to complete the guides. The fixtures such as the flush lifts 45 and catches 5I may then be applied to the window sashes to complete the assembly.

In large windows the spring balances may be located and installed prior to insertionof the sashes. When counterbalances are used the anges of the weather and supplementary parting strips must be cut away at the point where the tapes extend through the openings of the housing so that the tapes can operate between the flanges of the strips and the side edges of the respective sashes, the ends of the tapes being secured to the bottom rails of the sashes by suitable fastening devices.

With the window thus constructed, it is qb.

vious that the inner and outer sashes may be maniplated in the same manner as a single, double-hung sash window and that respective sash of one pair may be slid up and down to expose the opposite sashes in the other pair when it becomes necessary to wash the windows.

When the windows are closed a dead air space is provided between the sashes in plane of the parting stop I5 to prevent heat transfer and the formation of frost on the panes of the inner sash during colcl` weather. Suitable screens (not shown) may be applied against the blind stops as in conventional screening construction. When thus installed the screens do not interfere with manipulation of the sashes, and the windows can be opened in exactly the same manner as the conventional sliding sash, it being necessary to open either both the lower or upper sashes to provide the required ventilation.

What I claim and desire to secure by Letters Patent is:

1. In a window construction, a frame having spaced guideways therein, pairs of sash mounted for sliding movement in each of the guideways, parting strips mounted in each of the guideways and having yieldable rib portions engaging between the sashes of each pair to form separate guideways for each individual sash, and means for attaching only the ends of the parting strips to the frame whereby the parting strips are shiftable incidental to sliding movement of the sash.

2. In a window construction, a frame having spaced guideways therein, pairs of sash mounted for sliding movement in each of the guideways, parting strips mounted in each oi' the guideways and having yieldable rib portions engaging between the sashes of each pair to form separate guideways for each individualI sash, means for attaching only the ends of the parting strips to the frame whereby the parting strips are shiftabie incidental to sliding movement of the sash, and weather-strips cooperating with said parting strips to weather-seal said sashes.

3. A window construction including a frame having inner and outer spaced ways, a pair of outer sash slidably mounted in the outer ways, upper and lower sash slidably mounted in the inner ways to cooperate with the pair of outer sash to form an air insulating space between said sash, and a single parting member bodily shiftable in each of the inner ways and having a yieldable rib respectively engaging the inner side face of the upper sash and the outer side face of the lower sash so that when one of the sash is raised and lowered ,the entire parting member shifts toward the other sash to give additional clearance and greatery freedom of movement oi' the moved sash in said inner ways.

4. A window construction including a frame having inner and outer spaced ways, a pair ofl upper and lower sash slidably mounted in the outer ways, a pair of upper and lower sash slidably mounted in the inner ways and cooperating with the sash in the outer ways to form an air insulating space, and a single parting member bodily shiftable in each of said ways and having a rib respectively engaging the inner face ofthe respective upper sash and the outer face oi.' the respective lower sash so that when one of the sash is raised and lowered the entire parting member shifts toward the other sash to give additional clearance and greater freedom of movement of the moved sash in said ways.

5. A Window construction including a frame, xed stops in the frame forming inner and outer spaced ways, a pair of outer sash slidably mountved in the outer ways. upper and lower sash slidably mounted in the inner ways to cooperate with the pair of outer sash to form an air insulating space between said sash, and a single parting member bodily shiftable in each of the inner ways and having a yieldable rib respectively engaging the inner side face of the upper sash and the outer side face of the lower sash so that when one of the sash is raised and lowered the entire parting member shifts toward the other sash to give additional clearance and greater freedom of movement of the moved sash in said inner ways.

6. A window construction including a frame. xed stops in the frame forming inner and outer spaced ways, a pair of upper and lower sash slidably mounted in the outer ways, a pair of upper and lower sash slidably mounted in the inner ways and cooperating with the sash in the outer ways to form an air insulating space, and

a single parting member bodily shiftable in each of said ways and having a rib respectively engaging the inner face of the. respective upper sash and the outer face of the respective lower sash so that when one of the sash is raised and lowered the entire parting member shifts toward the other sash and in the direction of a xed stop to give additional clearance and greaterl freedom of movement of the moved sash.

FREDERICK B. ROSE. 

